I just seem to have bad luck with picking out corals. My parameters are always 0,0,0. If i start to see some nitrates I do a water change. But it just ended up happening again with the acan. Almost all skeleton now.

Remember, it's not just the temp, ammonia, nitrites, and nitrates. If one tank has decidedly more phosphates, different salinity, or substantially different ph, it can be a shock. But if you're dripping for an hour... That should be plenty of time. How steady is your drip? It should be fairly fast.

I've ordered boxes and boxes of corals. literally hundreds of acan colonies, along with many other corals and never dripped a single one. Some I didn't even temp acclimate due to the fact that the bags were compromised and were void of water. These corals were tossed right in the system and I've had much success. If this was a SPS colony I would say it could be a matter of acclimation, but I highly doubt that's the case here.

It isn't my intent to say that this is because of acclimating or lack of acclimating. My background is based on trauma based care as a counselor and supervisor of such. So I see them as the same. I view acclimation of corals as the treatment of emotional and physical trauma of humans and that some trauma can be "fixed". This case, and probably my other coral "failures" were probably cases of them being to far gone, but still acclimating in an attempt to prove otherwise. The acan was probably pretty recently fragged and through that, shipping in a small bag across the country, and being added to my tank was to much for it. Because it was in a small bad with roughly enough water to fill a shot glass, could not acclimate at all in reality.